Apparatus for drawing and handling glass cylinders.



H IWTCHCOCK APPARATUS FDR DRAWING AND HANDLING GLASS CYLINDERS. APPLICATION Fl-LD OCT. l. 1914.

Ptented Feb. 1. 1916- 3 SHEETS-SHEET. r.

WETNESSES H. K. HITCHCOCK. APPARATUS FOR DRAWING AND HANDLING GLASS CYLINDERS.

g vAPPLICATION FILED OCT. 1,1914. l 1.170,25?. y Peeented Feb. 1, 1916.

' 3 SHEETS-SHEET 2.

WITNESSES erw/f H.-K. HITCHCOCK. APPARATUS FOR DRAWING'AND HANDLING GLASS CYLINDERS.

Patented 116111, 1916.

3 SHEETS-SHEET 3 APPLICATION FILED OCT. I, i914.

INVENTOR wlTNEssEs s'rs PA HALBERT K.l HITCHCOCK, OF TARENTUM, PENNSYLVANIA, ASSIGNOR TO PITTSBURGH PLATE GLASS COMPANY,OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OFV PENNSYLVANIA.

APPARATUS FOR DRAWING AND HANDLING GLASS CYLINDERS.

Speccation of Letters Patent. Patented Feb, 1, .1.916,

Application led October 1, 1914. Serial No. 864,412. p

To all whom t may concern:

.Be it known that I, HALBERT K. HITCH- COCK, a citizen of the United States, residing at Tarentum, inthe county of Allegheny and State of Pennsylvania, have invented a certain new and useful Apparatus for Drawing and Handling Glass Cylinders, of which .the following is a specification.

The invention relates to apparatus em-v One embodiment of the invention is-.illus trated in the accompanying drawingsl wherein- Y p,

Figure 1 is a side elevation of the apparatus showing the general arrangementof the parts, Fig. 2 is a side elevation, with certain of the parts in section, of the portion of the apparatus in. which my invention`particularly resides, Figs. 3 and 4 are detailed views illustrating the catch employed for holding the bait handle, Fig. 3 being a plan view and Fig. 4 being a front elevation, and

. Fig. 5 is a rear elevation of the apparatus of Fig. 2.

Referring rst to Fig. 1, the principal parts are as follows: 1 is the framework of the drawing carriage, moved upward by any suitable mechanism, (not shown); 2 is the' bait upon which is supported the cylinder 3 being drawn; 4 is an inlet pipe by means of which air is conducted to the bait during the drawing operation; and 5 is a swinging takedown frame, operated from the motor 6 by means of the gearing illustrated .and pivoted at 7 so that its upper end swings along the arc 8 indicated in dot and dash lines.

The drawing 'carriage 1 is made of suitable metal sections as indicated in Figs. 2 and 5, and is guided for vertical movement i upon the vertical rods 9 (Fig. 5). Carried by the frame is the inlet pipe 4 having its i' upper end in communication with a drum 10 to' which air is supplied from a pipe l1.

-The bait 2 is provided with a .handle 12 carrying fixed thereon the collars 13 and 14. During the 'drawing operation the collar 14 lies above the laterally ropening ,fork 15 rigidly secured to the drawing carriage. At thls time the lower portion of the handle 12 is steadied by means of a fork member 16l also secured to the framework of the carriage.

The upper wall of the bait 2, is -provided wlth an upwardly and laterally extending lnlet passage 17, and airis-supplied to this passage from the pipe 18 which has a head 19 adapted to fit over the upper end of the passage 17. The pipe 18 is slidably mounted in the T 20, and its weight is such as to secure a sufficiently tight joint betweenthe head 19 and the upper end ofthe passage 17.

The pipe 18 is provided with the slot 21, so that a communication is maintained in its various .longitudinal positions between its interior and the supply'pipe-4 to which the T 20 is connected.

Whenvthe 'bait handle 12 is in the position illustrated in Fig. 2, with the collar 14 lying above the fork 15, the bait is held releasably againstlateral movement by meansof the catch illustrated in Figs. 3 and 4, such catch being located above the collar 14. This catch consists of two relatively heavy swinging members22 and 23 pivoted to the frame at 424 and 25. Each of these members is pro? vided with a finge-r 26 partially encircling.

the upper end of the handle 12; When these fingers are in engagement with the handle as indicated in Figs. 311mg 4, any lateral movementof the handle in the fork 15 is yieldingly resisted since in order to release the handle, it ,is `necessary that thehandle shall cam the lingers 26 apart and lift the members 22 `and 23 against the force of gravity. The arrangement is such however, that when this force is applied to the handle to move it laterally it releases itself automatically from the catch.

The upper end of the takedown 5 is provided with a pair of parallel members 27 constituting a fork and provided upon their upper surfaces with notches 28 for receiving the collar 13. The collar 13 is gotten into the notches 28 in the position indicatedin Fig. 2 by drawing the carriage to a point slightly above that illustrated, after which the members 27 are swung into the position illustrated and the carriage allowed to `move down slightly so-that the collar ts into the notches 28 andbehind the shoulders 29 also carried by, the vmembers 27 -so that any dan- 1 ai invasa? ger of the collar 13 slipping-oid of the members 27 is avoided. The upper surfaces of the members 27 to'the right of the shoulders 29 (Fig. 2) are provided with the cam surfaces 30 adapted to engage the roller 31 carriedloy the framework of the carriage.

The object of the foregoing arrangement including the cams and the roller is to secure an upward movement of the carriage from the takedown frame correspending in extent to the upward'movement oie the bait handle,

so that there is no relative movement as between the bait and the' carriage, and the collar 14 on. the bait handle is therlfore released from the fork by sliding laterally over its surface. lt will be seen that the cam surfaces bearing against the roller 31 causethe frame l and the fork 15 carried thereby to 'move upward as the frame is swung to the left, at the same rate of speed at which the bait handle is moved upward. fter'the bait handle is moved out of the fork 15, the receding cam 'surfaces 30 permit the carriage to move down gradually to its previous position asy the frame moves still farther to the left. During the movement of 'the/handle 12 away from the carriage, the

catch members 22 and above .the collar la are released automatically, as is also the connection between the passage 17 and the 'ahead' 19 of the pipe 18. The entire operation is thus automatic, the upward and lateral movement of the upper end of the talredown frame securing the ready disengagement of all the connecting parts and transferring the weight of the bait and the cylinder from the caritiage to the takedown frame without j ar l'or danger or accident of any hind. rl'he llio catch members 22 and 23, in addition to pre- .'.venting lateral movement ci the handle of the bait, also coperate with the collar le to prevent vertical movement of the handle, so that the bait is guarded in all directions against displacement.

-What l claim is:

1. ln combination, a drawing carriage, a bait having a laterally extending air supply passage, a handle yfor the bait supported on the carriage and removable therefrom by a lateral movement in a direction opposite to the direction in which the said air passage extends, an air supply pipe carried by the carriage and having a detachable connection with the air supply passage and disengageable by the lateral mevement of the bait, and a takedown apparatus adapted to engage the handle of the bait and remove it laterally from the carriage.

2. ln combination, a carriage, a bait hav.- ing an l air passage extending laterally through its wall, an air supply member mounted for lateral movement on the earriage and havingv its end in yielding engagement with the surface of the bait surrounding the end of said air passage,

handle extending upwardly from the bait and releasably engaging the carriage.

3. ln combination, a carriage, a bait hav ing in. its upper wall an oblique air supply assaOe an air su) l', iiie mounted for oblique movement with respect to the carriage and having releasable connection with the air supply passage of the bait, and handle extending upwardly from the top wall of the bait, and releasably engaging the r carriage.

. ln combination a carria e a bait iroa a h -vided with a handle having a projection enable therefrom by a movement laterally, a

catch independent of the support between the carriage and the handle and just above said support yieldingly restraining the handle against movement in a lateral direction, and a takedown apparatus adapted to engage the handle of the bait and move it laterally from the support overcoming the restraint of the said catch.

6. ln combination, a carriage, a bait with a handle engaged and supportedby the carriage, but removable therefrom by a move-- ment laterally, and a takedown member having a movement upward and laterally with respect to the carriage, such member having means for engaging the handle oi the bait and for giving the carriage an upward movement corresponding to that imparted to the handle of the bait.

7 .v In combination, a carriage, a bait with a handle engaged and supported by the carriage,but removable therefrom by a lateral sliding movement, and a talzedown frame pivoted so that its upper end swings away from the carriage and upwardly, and provided with means on such end for engaging the handle of the bait, and means whereby, v the upward movement of the frame imparts operating parts is carried by the carriage thgother by the upper end of the take- I down'frame, :whereby the .upward move- 1 mentf s'uch -end"causes a similar upward movement of the carriage while the bait .is being moved laterally from the bait supportm'g lfork of the carriage. Y

, 9. In combination, a drawing carriage, a

l bait carried thereby and removable laterally l therefrom,

10. In combination, a carriage having a fork, a bait provided a projection engaged and supported by the fork on the carriage but removable therefrom by a movement laterally, and a catch on the carriage just above the projection preventing any substantial upward movement of the handle with respect to the carriage, and yieldingly restraining the handle against lateral movement.

In testimony whereof I have hereuntov signed my name in the presence of the two subscribed witnesses.

HALBERT K. HITCHCOCK. Witnesses' j ARGHWORTH MARTIN, M. L. J ONES.

with a handle carrying 

